/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hive.ql.io.parquet.vector;
import org.apache.hadoop.hive.ql.exec.vector.ColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.StructColumnVector;
import org.apache.hadoop.hive.serde2.typeinfo.StructTypeInfo;
import org.apache.hadoop.hive.serde2.typeinfo.TypeInfo;
import java.io.IOException;
import java.util.List;
public class VectorizedStructColumnReader implements VectorizedColumnReader {
private final List<VectorizedColumnReader> fieldReaders;
public VectorizedStructColumnReader(List<VectorizedColumnReader> fieldReaders) {
this.fieldReaders = fieldReaders;
}
@Override
public void readBatch(
int total,
ColumnVector column,
TypeInfo columnType) throws IOException {
StructColumnVector structColumnVector = (StructColumnVector) column;
StructTypeInfo structTypeInfo = (StructTypeInfo) columnType;
ColumnVector[] vectors = structColumnVector.fields;
for (int i = 0; i < vectors.length; i++) {
fieldReaders.get(i)
.readBatch(total, vectors[i], structTypeInfo.getAllStructFieldTypeInfos().get(i));
structColumnVector.isRepeating = structColumnVector.isRepeating && vectors[i].isRepeating;
for (int j = 0; j < vectors[i].isNull.length; j++) {
structColumnVector.isNull[j] =
(i == 0) ? vectors[i].isNull[j] : structColumnVector.isNull[j] && vectors[i].isNull[j];
}
structColumnVector.noNulls =
(i == 0) ? vectors[i].noNulls : structColumnVector.noNulls && vectors[i].noNulls;
}
}
}